checkForGameEnd method

Implementation

GameOverBy? checkForGameEnd(ChessBoardInterface game) {
  GameOverBy? gameOverBy;

  if (game.isCheckmate()) {
    gameOverBy = GameOverBy.checkmate;
  } else if (game.isStalemate()) {
    gameOverBy = GameOverBy.stalemate;
  } else if (game.isDraw) {
    gameOverBy = GameOverBy.draw;
  } else if (game.resign != null) {
    gameOverBy = GameOverBy.resign;
  } else if (game.isTimeOut()) {
    gameOverBy = GameOverBy.timeout;
  } else if (game.isInsufficientMaterial()) {
    gameOverBy = GameOverBy.insufficientMaterial;
  } else if (game.isThreefoldRepetition()) {
    gameOverBy = GameOverBy.threefoldRepetition;
  } else if (game.isFiftyMoveDraw()) {
    gameOverBy = GameOverBy.fiftyMoveRule;
  }

  if (gameOverBy != null && onGameOver != null) {
    onGameOver!(gameOverBy);
  }

  return gameOverBy;
}